CROSS-REFERENCE TO RELATED APPLICATIONThis application claims the priority benefit of Taiwan application Ser. No. 87221177, filed Dec. 19, 1998, the full disclosure of which is incorporated herein by reference.
BACKGROUND OF THE INVENTION1. Field of Invention
The present invention relates to an earphone. More particularly, the present invention relates to an adjustable earphone with a microphone.
2. Description of Related Art
People enjoy personal audio systems because users can listen to the radio, a tape, or a CD, without disturbing others and while simultaneously engaging in other activities. A personal audio system includes an earphone that is worn on the user's ear. Thus, only the user can hear the sound produced by the personal audio system and others are not disturbed. The earphone also provides better sound transmission, which allows the user to hear the sound more clearly than if the sound were mediated by the air. In addition, the sound transmitted by the earphone is not disturbed while the user is moving, exercising, or in a noisy environment. This type of earphone is also used in communication systems, such as educational, telephone or radio-communication systems. When the earphone is used in a communication system, a microphone is usually mounted on the earphone and extends to a location near the user's mouth. With such a system, the user can communicate with his or her hands free.
FIG. 1 illustrates a conventional earphone with a microphone. The earphone usually includes aspeaker 10 and amicrophone 12. Thespeaker 10 is so small that it can be fixed on the user's exterior acoustic meatus. Themicrophone 12 includes aclip 14 that allows the user to affix themicrophone 14 in the location near the user's mouth, e.g., on the collar.
However, the convenience and the comfort for the user while wearing an earphone are very important. The speaker of the conventional earphone which tends to fall out of the ear causes discomfort when it is worn. In addition, the microphone needs to be clipped to something, but it is not always easy for the user to find a place to clip the microphone to. Thus the microphone may be attached at a distance from the user's mouth, so that the communication system is disturbed and noises are produced.
An earphone that can be comfortably worn by a user and can be firmly fixed on the user's ear while the user is exercising is disclosed in U.S. Pat. No. 5412736. An earphone with a microphone is disclosed in Taiwan application No. 87111485 based on U.S. Pat. No. 5412736, wherein both the signal-wire coupling to the microphone and the signal-wire coupling to the speaker pass through a slot in the hook of the earphone. After passing through the slot, one of the signal-wires couples to the speaker, and the other signal-wire couples to the microphone through a boom. It is difficult to fabricate, assemble, and use the earphone. In addition, if the user feels tired, due to extended wear of the earphone on one ear, and tries to move the earphone from one ear to another ear, e.g. from his right ear to his left ear, many steps are needed. These steps include: taking off the earphone, turning the speaker chamber, turning the boom which supports the microphone, adjusting the speaker chamber so that the speaker chamber can be affixed on the exterior acoustic meatus. etc.
SUMMARY OF THE INVENTIONThe present invention provides an earphone with a microphone. The earphone includes a hook, a speaker, and a microphone. The speaker is in a speaker chamber and the microphone is in a microphone chamber, wherein the speaker chamber and the microphone chamber respectively protect the speaker and the microphone. The hook comprises a speaker end connecting to the speaker and a microphone end connecting to the microphone. When the earphone is worn on a user's ear, the hook extends along the user's helix, wherein the speaker end of the hook is near the upper side of the helix, and the microphone end of the hook is near the user's earlobe. The speaker of the earphone connects to the speaker end of the hook by an outrigger, and the microphone connects to the hook by a boom. The speaker signal-wire extends from the speaker and then passes through the outrigger, the speaker end of the hook, the slot in the hook and then couples to the audio signal manager. The microphone signal-wire extends from the microphone, passes through the boom and then couples to the audio signal manager.
Both the microphone signal-wire and the speaker signal-wire can be protected well in the invention. Additionally, fabrication of the earphone according to the invention is much easier.
It is to be understood that both the foregoing general description and the following detailed description are exemplary, and are intended to provide further explanation of the invention as claimed.
BRIEF DESCRIPTION OF THE DRAWINGSThe accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention. In the drawings,
FIG. 1 shows a schematic, front view of a conventional earphone with a microphone;
FIG. 2 shows a schematic, front view of the earphone with a microphone according to a preferred embodiment of the present invention;
FIG. 3 shows a schematic, cross-sectional view of the earphone with a microphone as illustrated in FIG. 2;
FIG. 4 shows a schematic, side view of the embodiment of the earphone with a microphone while being worn by a user; and
FIG. 5 shows a schematic view from the rear side of the head of a user while the earphone with a microphone according to a preferred embodiment of the invention is worn by a user.
DESCRIPTION OF THE PREFERRED EMBODIMENTSReference will now be made in detail to the present preferred embodiments of the invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers are used in the drawings and the description to refer to the same or like parts.
FIG. 2 shows a front view of the earphone with a microphone according to a preferred embodiment of the present invention, and FIG. 3 shows a cross-sectional view of the earphone with a microphone in FIG. 2. As shown in FIG. 2 and in FIG. 3, thehook 20 is an apparatus that can be comfortably and firmly worn on a user's ear by extending and clipping along the user's ear. Oneend 24 of thehook 20 connects to thehousing 22. Anoutrigger 30 passes through thehousing 22 and connects to thespeaker chamber 40. Thespeaker 42 is in thespeaker chamber 40.
The user can slide theoutrigger 30 upwardly or downwardly in thetunnel 23 of thehousing 22 along thetunnel 23 along the direction of the arrowhead I. The user can also turn theoutrigger 30 in thetunnel 23 of thehousing 22 along the direction of the arrowhead II. While the force exerting on theoutrigger 30 vanishes, theoutrigger 30 will stay firmly because of the friction. Thus the direction and location of thespeaker chamber 40 can be adjusted according to the user so that thespeaker chamber 40 can be comfortably fixed on the user's exterior acoustic meatus. There arebulges 33 on both ends of theoutrigger 30; thebulges 33 are at two ends of theoutrigger 30. Thebulges 33 prevent theoutrigger 30 from slipping away from thehousing 22.
FIG. 3 shows a cross-sectional view of the earphone with a microphone as illustrated in FIG. 2. As seen in FIG. 3, theoutrigger 30 and theboom 52 are both hollow tubes. Thehook 20 also includes a hollow passage therein. The signal-wire 62 extend from thespeaker 42 and then extend into thebore 31 of theoutrigger 30. After the signal-wire 62 passes through theoutrigger 30, the signal-wire 62 form aloop 63 before entering thehook 20. The signal-wire 62 extend to oneend 26 of thehook 20 after passing through thehook 20, and then the signal-wire 62 passes into thetri-bores housing 50. Theloop 63 is a looser and less tensile part of the signal-wire 62, and theloop 63 exists to let theoutrigger 30 move easily in thehousing 22. The signal-wire 62 passes into thebore 48 of thetri-bore housing 50 after extending from theend 26 of thehook 20. The signal-wire 64 extends from themicrophone 56 and passes into thebore 53 of theboom 52. The signal-wire 64 then passes into thebore 49 of thetri-bore housing 50 and extends from thebore 47. Finally, the signal-wire 64 couples to the audio signal manager. Referring to FIG. 3 and FIG. 4, signal-wire 62 and signal-wire 64 are usually combined into onewire 60. Thewire 60 extends from thebore 47 of thetri-bore housing 50 and then connects to the end point for coupling to theaudio signal manager 80. Theaudio signal manager 80 can be a communication means, e.g. mobile phone, wireless, multi-media, or radio intercom.
Referring to FIG. 2 and FIG. 3, one end of theboom 52 connects to thetri-bore housing 50, and the other end of theboom 52 connects to themicrophone chamber 54. Theboom 52 is a delicate and waterproof hollow tube used for covering and holding the microphone signal-wire 64. Additionally, the microphone is made from materials having high ductility because theboom 52 should be able to be bent easily by the user, and theboom 52 should maintain its configuration after being bent by the user. Thus the user can adjust the location of themicrophone chamber 54 according to the location of the user's mouth when wearing the earphone with microphone of the invention.
If two earphones are used simultaneously, the signal-wire 60 can be plugged into a Y-type connector so that the signal from the audio signal manager can be transmitted to both of the earphones. If needed, a volume controller and a switch can also be installed on the signal-wire 60 for the user to control the On/Off State and the volume easily.
FIG. 4 shows a side view of the embodiment of the earphone with a microphone while being worn by a user, and FIG. 5 shows a view from the rear side of the head of a user wherein the earphone with a microphone is worn on the user's ear. Referring to FIG. 4 and FIG. 5, thehook 20 extends from a location near theearlobe 86 to a location near the upper side of thehelix 88. Thehook 20 is designed according to the shape of the ear and thus it is comfortable for the user to wear the earphone on his or her ear. Oneend 26 of thehook 20 is at the rear side of the ear near theearlobe 86, and theother end 24 of thehook 20 connects to ahousing 22 on the upper side of thehelix 88. Thus thehook 20 cannot easily fall from the ear. Additionally, after wearing the earphone according to embodiment of the invention, the user can adjust theoutrigger 30 that connects to thespeaker chamber 40 and thehook 20 enable the speaker chamber to be located in a more comfortable position. Thehook 20 and theoutrigger 30 also keep thespeaker 42 and thespeaker chamber 40 on the exterior acoustic meatus even when the user is engaged in vigorous physical activity.
Generally, high quality speakers always have a metal buffer cap. But when the user is engaged in vigorous physical activities, the sweat and the humidity still erode the earphone. To resolve this problem, the speaker of the invention has a waterproof material covering the the metal buffer cap. The waterproof material can be made from latex. The waterproof material is interleaved between the metal buffer cap and a scale-proof meshes, and than sealed by an elastic seal.
Some people need their hands free and have to pay attention to the surroundings while working, thus the earphone with a microphone according to their invention is very important. Sometimes they may feel tired after wearing the earphone on the same ear for a long time and try to move the earphone from one ear to another ear. At such a time, the user just needs to take off the earphone and turn thespeaker chamber 40 about 180°, after which then the earphone can be worn on the other ear. While the user engages in vigorous physical activity, the housing prevents theoutrigger 30 from turning or moving due to friction, and thus thespeaker chamber 40 does not turn nor move. As a result, the user still feels comfortable even during vigorous activity.
It will be apparent to those skilled in the art that various modifications and variations can be made to the structure of the present invention without departing from the scope or spirit of the invention. In view of the foregoing, it is intended that the present invention shield modifications and variations of this invention provided they fall within the scope of the following claims and their equivalents.